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Herderite and Ruby Optical Properties


Ruby and Herderite Optical Properties


Optical Properties

Luster
Vitreous   
Vitreous, Adamantine, Vitreous, Adamantine   

Pleochroism
Not Available   
Strong: purplish-red   

Dispersion
Not Available   
0.02   
21

Transparency
Transparent   
Transparent, Translucent, Transparent to opaque   

Refractive Index
1.587-1.642   
1.762-1.778   

Optic Character
Biaxial/+   
Not Available   

Crystal System
monoclinic   
Trigonal   

Birefringence
0.028-0.032   
0.008   

Clarity
Transparent   
Transparent   

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Herderite and Ruby Optic Character

Herderite and Ruby optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Herderite and Ruby Physical Properties like crystallographic symmetry, pleochroism,etc. in the crystal. Some of the optical properties are refractive index, luster, optic character, pleochroism etc. Prominent among these is Herderite and Ruby optic character. You might have noticed your gemologist rotating the gemstone while testing it. Rotating a gemstone along its optic axis helps in determining its optic character. Herderite has Biaxial/+ character.

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Herderite and Ruby Transparency

Similar to their colors, Herderite and Ruby transparency can also be used as criteria for their primary identification. Although transparency cannot be the only criteria for gemstone identification, it can efficiently used in gemstone grading. Talking about their transparency, Herderite is Transparent while Herderite is Transparent in appearance.

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